sysdeps/sh/sh4/bits/setjmp.h

   1 /* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 /* Define the machine-dependent type `jmp_buf'.  SH version. */
  20
  21 #ifndef _SETJMP_H
  22 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  23 #endif
  24
  25 #ifndef _ASM
  26 typedef struct
  27   {
  28     /* Callee-saved registers r8 through r15.  */
  29     int __regs[8];
  30
  31     /* Program counter.  */
  32     void * __pc;
  33
  34     /* The global pointer.  */
  35     void * __gbr;
  36
  37     /* Floating point status register.  */
  38     int __fpscr;
  39
  40     /* Callee-saved floating point registers fr12 through fr15.  */
  41     int __fpregs[4];
  42   } __jmp_buf[1];
  43 #endif
  44
  45 #define JB_SIZE         (4 * 15)
  46
  47 /* Test if longjmp to JMPBUF would unwind the frame
  48    containing a local variable at ADDRESS.  */
  49 #define _JMPBUF_UNWINDS(jmpbuf, address) \
  50   ((void *) (address) < &(jmpbuf)[0].__regs[7])